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Re: is it really required that arr['1']=bla gives syntax error instead o
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From: |
Greg Wooledge |
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Subject: |
Re: is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1 |
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Date: |
Mon, 19 Jul 2021 11:55:32 -0400 |
On Mon, Jul 19, 2021 at 10:30:36AM -0500, Jesse Hathaway wrote:
> That does seem inconsistent with how bash treats double quoted array
> subscripts and variable subscripts.
>
> all these work:
>
> arr["1"]=bar
> one='1'
> arr[$one]=foo
> arr["$one"]=baz
>
In <https://lists.gnu.org/archive/html/bug-bash/2021-02/msg00189.html>
Chet says that "The contents of (( are expanded as if they are between
double quotes". I wonder if this generalizes to *all* arithmetic
contexts.
unicorn:~$ (( 4 + '1' ))
bash: ((: 4 + '1' : syntax error: operand expected (error token is "'1' ")
unicorn:~$ arr['1']=bla
bash: '1': syntax error: operand expected (error token is "'1'")
unicorn:~$ echo "${LOGNAME:'1'}"
bash: LOGNAME: '1': syntax error: operand expected (error token is "'1'")
unicorn:~$ let x='1'+2
unicorn:~$ echo "$x"
3
unicorn:~$ [[ 4 -gt '1' ]]
unicorn:~$
Hmm. Not all of them, apparently. Some of them.
- is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1, Alex fxmbsw7 Ratchev, 2021/07/19
- Re: is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1, Jesse Hathaway, 2021/07/19
- Re: is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1,
Greg Wooledge <=
- Re: is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1, Alex fxmbsw7 Ratchev, 2021/07/19
- Re: is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1, Greg Wooledge, 2021/07/19
- Re: is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1, Alex fxmbsw7 Ratchev, 2021/07/19
- Re: is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1, Lawrence Velázquez, 2021/07/19
- Re: is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1, Greg Wooledge, 2021/07/19
- Re: is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1, Jesse Hathaway, 2021/07/19
- Re: is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1, Lawrence Velázquez, 2021/07/19
- Re: is it really required that arr['1']=bla gives syntax error instead of parse '1' as 1, Lawrence Velázquez, 2021/07/19